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Related Experiment Videos

Parametrically Tunable Soliton-Induced Resonant Radiation by Three-Wave Mixing.

B B Zhou1, X Liu1, H R Guo1

  • 1DTU Fotonik, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark.

Physical Review Letters
|April 22, 2017
PubMed
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Temporal solitons induce tunable resonant radiation via three-wave mixing, enabling broadband supercontinuum generation. This new method extends mid-infrared light generation and is crucial for frequency comb applications.

Area of Science:

  • Nonlinear Optics
  • Quantum Optics
  • Materials Science

Background:

  • Temporal solitons are self-reinforcing light pulses that maintain their shape.
  • Three-wave mixing is a nonlinear optical process involving three light waves.
  • Supercontinuum generation involves creating broadband light from a narrow-band source.

Purpose of the Study:

  • To demonstrate a new class of resonant radiation induced by temporal solitons.
  • To show that this resonant radiation is parametrically tunable.
  • To extend supercontinuum generation into the mid-infrared region.

Main Methods:

  • Excitation of femtosecond near-infrared solitons in a periodically poled lithium niobate crystal.
  • Observation of resonant radiation waves via sum- and difference-frequency generation.

Related Experiment Videos

  • Parametric tuning of the mid-infrared edge by adjusting the three-wave mixing phase-matching condition.

    • Main Results:

    • A new class of parametrically tunable resonant radiation induced by temporal solitons was observed.
    • Experimental verification confirmed resonant radiation at calculated soliton phase-matching wavelengths.
    • Supercontinuum bandwidth was extended to the mid-infrared (550-5000 nm).
    • The mid-infrared edge was parametrically tunable over 1000 nm.

    Conclusions:

    • Temporal solitons can induce tunable resonant radiation through three-wave mixing nonlinearities.
    • This technique enables broadband supercontinuum generation extending into the mid-infrared.
    • The findings are significant for applications in bright, broadband supercontinuum and frequency comb generation in quadratic nonlinear microresonators.